package com.xyz.springcloud.service.impl;

import com.xyz.springcloud.service.IMessageProvider;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessageChannel;

import javax.annotation.Resource;
import java.util.UUID;

/**
 * @author 肖咉卓
 *
 * EnableBinding : 指信道channel和exchange绑定在一起，定义消息的推送管道
 */
@EnableBinding(Source.class)
public class IMessageProviderImpl implements IMessageProvider {

    /**
     * 消息的发送管道
     */
    @Resource
    private MessageChannel output;

    @Override
    public String send() {
        String serial = UUID.randomUUID().toString();
        //发送消息
        output.send(MessageBuilder.withPayload(serial).build());
        System.out.println("*****serial"+serial);
        return serial;
    }
}
